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MitchS046
Samba Member
Joined: March 02, 2020
Posts: 114
Location: Holland
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 Posted: Sat Jul 04, 2020 7:45 am Post subject: full flow or pump cover with outlet |
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1915 hot street with an remote mounted oil cooler needs a full flow setup right? I recently came across oil pump covers with in and outlet and an build in pressure valve. with route should I go? prices are about the same but the pump cover is much easier.
talking about this one https://www.csp-shop.com/en/engine/oil-pump-easyfl...html[/url]
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Slow is smooth, smooth is fast,
~ mark divine |
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bedlamite
Samba Member
Joined: September 30, 2004
Posts: 182
Location: WI
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| Posted: Sat Jul 04, 2020 7:54 am Post subject: Re: full flow or pump cover with outlet |
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| Full flow is better. The in/out pumps are restrictive. |
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SRP1
Samba Member
Joined: January 06, 2007
Posts: 4340
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| Posted: Sat Jul 04, 2020 10:55 am Post subject: Re: full flow or pump cover with outlet |
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| That works in the same fashion, 100% of the oil out, then back = full flow. Better chance of success having the in/out on the pump cover than taking the risk of cracking the return port in the case when you install the fitting. And no that cover is not restrictive for the application your using it on. |
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Paul Jr
Samba Member
Joined: July 20, 2018
Posts: 458
Location: PA
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| Posted: Sun Jul 05, 2020 4:32 am Post subject: Re: full flow or pump cover with outlet |
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I have come to the conclusion while working with hydraulics on tractors that when the fluid is forced threw a smaller opening it actually creates excessive heat in the cylendar. Compared to the same average amount of cycle times in the same cylendar with the same pump and a wider I.D. fitting.
Would this same thing not happen when the oil is pushed threw the smaller opening in the more restrictive pump?
It just seems to me that we can get a less restrictive fitting onto the block with less turns and bends. Which should in theory help in keeping oil cooler.
Any thoughts? |
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mikedjames
Samba Member
Joined: July 02, 2012
Posts: 2743
Location: Hamble, Hampshire, UK
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| Posted: Sun Jul 05, 2020 9:05 am Post subject: Re: full flow or pump cover with outlet |
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I see completely normal oil pressure with the in / out pump on a CB Maxi 3 with a 26mm oil pump.
I have reinstalled a full flow oil system in a field while camping using a CB Maxi 3. .. fitted new engine, completed run in and decided to reinstate full flow .
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SBD
Samba Member
Joined: October 24, 2012
Posts: 3269
Location: SOUTH DAKOTA
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| Posted: Sun Jul 05, 2020 9:08 am Post subject: Re: full flow or pump cover with outlet |
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| Paul Jr wrote: |
I have come to the conclusion while working with hydraulics on tractors that when the fluid is forced threw a smaller opening it actually creates excessive heat in the cylendar. Compared to the same average amount of cycle times in the same cylendar with the same pump and a wider I.D. fitting.
Would this same thing not happen when the oil is pushed threw the smaller opening in the more restrictive pump?
It just seems to me that we can get a less restrictive fitting onto the block with less turns and bends. Which should in theory help in keeping oil cooler.
Any thoughts? |
Friction is also added along the length of the hose/tubing/whatever that's used to plumb the system. And it increases in direct proportion to the length of it. Longer plumbing=more friction/heat.
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"Just $99 down and $64 a month for 36 months buys you a brand new Volkswagen Beetle!"
| mark tucker wrote: |
| I wouldent waste $ or thyme on building a small motor. build it big so it dosent have to work hard.remember it's only as fast as your foot alows it to be unless you build a small turd then it just stinks as it squishes up through your toes when you step on it. |
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Paul Jr
Samba Member
Joined: July 20, 2018
Posts: 458
Location: PA
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| Posted: Sun Jul 05, 2020 10:02 am Post subject: Re: full flow or pump cover with outlet |
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| SBD wrote: |
| Paul Jr wrote: |
I have come to the conclusion while working with hydraulics on tractors that when the fluid is forced threw a smaller opening it actually creates excessive heat in the cylendar. Compared to the same average amount of cycle times in the same cylendar with the same pump and a wider I.D. fitting.
Would this same thing not happen when the oil is pushed threw the smaller opening in the more restrictive pump?
It just seems to me that we can get a less restrictive fitting onto the block with less turns and bends. Which should in theory help in keeping oil cooler.
Any thoughts? |
Friction is also added along the length of the hose/tubing/whatever that's used to plumb the system. And it increases in direct proportion to the length of it. Longer plumbing=more friction/heat. |
So the extra time spent returning from the front of the pump cover back to the main oil galley is better or worse than the hose being unattached to the engine heat longer and entering directly in threw a wider opening with less restriction? |
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SBD
Samba Member
Joined: October 24, 2012
Posts: 3269
Location: SOUTH DAKOTA
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| Posted: Sun Jul 05, 2020 11:43 am Post subject: Re: full flow or pump cover with outlet |
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| Paul Jr wrote: |
So the extra time spent returning from the front of the pump cover back to the main oil galley is better or worse than the hose being unattached to the engine heat longer and entering directly in threw a wider opening with less restriction? |
I don't know. A large enough I.D. on the hose should negate the friction imposed by the hose to the point where it would be negligible compared to that caused by the limitations of the fittings. But I think that there's probably some trade-offs one way or the other no matter how you do it. Personally, I like the High Quality filter pumps due to their simplicity. But they have their limitations. 
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"Just $99 down and $64 a month for 36 months buys you a brand new Volkswagen Beetle!"
| mark tucker wrote: |
| I wouldent waste $ or thyme on building a small motor. build it big so it dosent have to work hard.remember it's only as fast as your foot alows it to be unless you build a small turd then it just stinks as it squishes up through your toes when you step on it. |
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Paul Jr
Samba Member
Joined: July 20, 2018
Posts: 458
Location: PA
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| Posted: Sun Jul 05, 2020 11:57 am Post subject: Re: full flow or pump cover with outlet |
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| I can say that with the same hoses and smaller ID fittings after 1 hour you could not touch the cylendars without hurting your hand. With the wider fittings and less restrictive return line the cylendars were easy to grab and hold. |
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Ohio Tom
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Joined: February 09, 2006
Posts: 1660
Location: Marshallville Ohio
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| Posted: Wed Jul 08, 2020 8:12 am Post subject: Re: full flow or pump cover with outlet |
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without knowing for sure the flow rate (GPM) thru the fitting sizes, you cannot say anything about heating with any accuracy.
Look at the bore size for the oil galleys in the case.. how big are they?
In/Out pumps are just fine.
Just a different way to skin a cat. |
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MitchS046
Samba Member
Joined: March 02, 2020
Posts: 114
Location: Holland
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| Posted: Wed Jul 08, 2020 10:21 am Post subject: Re: full flow or pump cover with outlet |
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| Ohio Tom wrote: |
without knowing for sure the flow rate (GPM) thru the fitting sizes, you cannot say anything about heating with any accuracy.
Look at the bore size for the oil galleys in the case.. how big are they?
In/Out pumps are just fine.
Just a different way to skin a cat. |
Fittings on the cover are M18x1,5/ 3/8th NPT so guessing pretty big
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~ mark divine |
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